Stop motion for winding and analogous machines



Oct. 26 192s. 1,604,617

J. H. $TUBBS STOP MOTION FOR WINDING AND ANALOGOUS MACHINES Filed Dec. 24 1925 2 Sheets-Sheet i Invennr:

4 Oct. 26 1926.

1,604,617 J. -H. sTuBBs STOP MOTION FOR WINDING AND ANALOGOUS MACHINES Filed Dec. 24, 1925 2 Sheets-Sheet 2 Invenron- Patented Get. 26, 192$.

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arena" JOSEPHHETEIERINGTON STUB'BS, OF ANCOATS, MANCHESTER, ENGLAND, A SSIGNOR TO JOSEPH ST'UBBS LIMITED, 61? MANCHESTER, ENGLAND, A LIMITED LIABILITY COMPANY OF GREAT BRITAIN.

STU? MOTION FOR i/VINDING AND ANALOGOUS MACHINES,

Application filed December 24, 1925, Serial No.

The application to winding machines for the winding of artificial silk, of stop motions as generally applied to machines for wind ing cotton and woolen and other twisted yarns, is not practicable, as the artificial silk during winding, in the earlier stages of its production, is in such a condition that it will not bear any weight or suffer any bending or angles in the length of yarn.

The present invention has for object a very simple and efficient stop motion to be applied to an apparatus for winding artificial silk yarns, without damage to the yarn.

The invention will now be described fully with reference to the accompanying drawings, wherein Figure 1 is a side elevation of a swift having wound upon it artificial silk yarns and. showing the feeler which according to the invention actuates the knock 20 off motion; Figure 2 being a front elevation of the feeler and its support with a type of knock off motion which may be actuated thereby.

In the drawings, yarn passes from a yarn 25 package below (not shown) for instance a cake .as it comes from a spinning box in the viscose process, thence through eye 3 to eye 4: on the usual yarn traversing arm 5, and thence to and around the rotating swift 6 All of these parts are known, and need not be described here. 1

Between the eyes 3 and 4 is mounted the feeler 7, of wire which wire is returned at its lower end and bears on such returned por- 35 tion the rotating flanged spindle or bobbin of ebonite or like material. The upper end of the feeler is bent round and has screwed to it the plate 9, and the whole feeler unit thus formed is pivotally mounted in a frame or carrier 10 supported on the frame 11 of the machine as shown. The yarn 00 passes between two faces 12Figure 2-which serve to limit in its traversing motion under the influences of traverse arm 5.

The feeler 7 according to my invention is in actual operative position at a slight angle to the vertical as shown, that is to say, it is substantially parallel to the yarn 00 as it passes from eye 3 to 4-. As a resultof 50 this arrangement, the weight on either s de of the pivot 13 may be so arranged including the plate 9, that the upper portion is a shade the heavier, ust sufficient to allow the feeler 77,595, and in Great Britain October 1, 1925.

to have motion by gravity around 13 when the yarn w breaks or is removed.

The method illustrated of operating the knock off motion from this fall of the upper end of the feeler around its pivot 13 will now be described. 14 is a wiper shaft with wipers 15 and this shaft ,is rotated from a chain wheel 16, Figure 2, through chain 17 and sprocket wheel 18, and which wheel is loose on the shaft 1 1. This wheel however has formed solid with it the collar 19 with groove 20 and an inclinedface 21 which latter abuts against an inclined face 22 on a driving block or col1arf23 fast on the shaft in. A pressure spring 2%, abutting at one end against a collar 25 pinned on shaft 14, and at the other end against the inner end of the tubular bossl9 on sprocket wheel 18, serves to maintain tight driving contact between the inclined faces 'of members. 19 and 23.

When the yarn 0a breaks the upper end of feeler 7 swings downwardly and the plate 9 thus comes into the path of a wiper 15 on the shaft 1 1. The rotation of the said shaft and therefore of the driving member 23 fast thereon being thus arrested, the sprocket wheel. 18 and member 19 are pushed to the left along the shaft 14, by the rotation of sprocket 18, inclined face 21 of member 19 forcing this movement by its sliding contact with the now stationary member 23. A lever 26 the end of which engages in groove 20 and which lever is fulcrumed in a bracket 27, presses with its upper cranked end against an arm 28 as a result of this movement of the parts along the shaft 14;. The arm 28 is pivoted at 29 to the machine frame 11 and is supported at its upper end in a slotted lug 30- y The arm 28 moves against the pressure of a plate spring 31 and in so moving brings a detent 32 from beneath a cranked member 33 which the said cletent normally supports to keep the spur wheel 34 in positive engagement with a further driving spur wheel'not shown. The spur wheel shown in the drawings is driven from the spur wheel 34: and actuates the usual well known counting mechanism, which is not further shown ordescribed. As a result of the removal of the detent 32 as stated the dropping of the support 33 has the result therefore that spur wheel 34 rolls on the counting gear spur wheel and out of mesh with the driving spur wheel, the swift and counting mechanism thus being stopped simultaneously as a result of the movement of the feeler 7.

The breakage of yarn having been repaired, the parts are again lined in their original positions and the drive recommences. To avoid possible damage to the feeler 7 and for the convenience of the operative, lever 36 is provided having a short spindle 37 at the end thereof to come under the upper end of the feeler wire, when the handle 38 of the lever is depressed, this lever is piYQted at 39.

As will, be understood, any knock off motion may beemployect which can be operated by the arresting of a rotating member through the fall of the feeler 7. Also, the configuration, of the said feeler may be altered as may be found desirable, so long as it is: still. in a. form to allow of its being held gently against the yarn a; with a slight counterweight to; ensure that it will fall by reason. of the counterweight, when the yarn breaks or is removed.

i I claim 1. In; apparatus for the winding of. artificialsilk yarns in their earlier stages after spinning, a pivotally mounted plate, a curved feeler wire one end of. which is attached to the plate. at a. distance from the pivotal point thereof, the feeler wire curving above the pivot to the other side of the pivotal point, continuing downwardly on such other side, and curving outwardly towards the yarn being wound, and a contact melnber 0n the lower extremity of such curved portion to make feeling contact with the yarn, the pivotal point being substantially central of the plane of movement of the feeler wire and the latter and plate being practically in counterpoise on the pivot.

2. In combination with a plate and feeler wire arranged as claimed in claim 1, a wiper shaft adjacent to the plate, a driving block on the shaft which driving block has an inclined face, a chain sprocket wheel loosely mounted on the shaft and slidable thereon against spring pressure, an inclined face member, solid, with the sprocket wheel and engaging the inclined face of the driving block, a centrally pivoted lever one end of which engages with the sprocket wheel and its inclined face member to move therewith longitudinally of the wiper shaft, a knock off lever operated by the other and free end of the centrally pivoted lever, and means for driving the wiper shaft through the sprocket wheel and inclined face member which is solid with such sprocket.

In testimony whereof I have hereunto set my hand.

JOSEPH HETHERINGTON STUBBS- 

